903
FXUS01 KWBC 260813
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT WED MAR 26 2025
VALID 12Z WED MAR 26 2025 - 12Z FRI MAR 28 2025
...HEAVY RAIN AND FLASH FLOODING POTENTIAL EMERGING ACROSS
SOUTHERN TEXAS LATER TODAY AND CONTINUING INTO THURSDAY...
...THUNDERSTORMS COULD BECOME SEVERE ACROSS THE PACIFIC NORTHWEST
TONIGHT, AND ACROSS SOUTHERN TEXAS ON FRIDAY...
...PERIODS OF LIGHT SNOW EXPECTED FROM THE GREAT LAKES TO THE
NORTHEAST AS RECORD WARMTH SPREADS FROM THE WESTERN U.S. INTO THE
CENTRAL U.S....
A PERSISTENT BROAD UPPER-LEVEL TROUGH WILL CONTINUE TO DELIVER
COLDER THAN NORMAL TEMPERATURES AND PERIODS OF LIGHT SNOW FROM THE
GREAT LAKES INTO THE INTERIOR NORTHEAST FOR THE NEXT COUPLE OF
DAYS. ON THE OPPOSITE SIDE OF THE COUNTRY HOWEVER, A RIDGE OF
HIGH PRESSURE THAT HAS ALLOWED RECORD HIGH TEMPERATURES OF ABOVE
100 DEGREES AT THE HOTTEST LOCATIONS IN THE DESERT SOUTHWEST ON
TUESDAY WILL BEGIN TO SHIFT EAST TOWARD THE CENTRAL U.S. HIGH
TEMPERATURES REACHING INTO THE 70S WILL CHALLENGE OR BREAK DAILY
RECORDS ACROSS THE PACIFIC NORTHWEST AND INTO THE NORTHERN GREAT
BASIN THIS AFTERNOON. BY THURSDAY AFTERNOON, RECORD WARMTH WILL
SHIFT EAST TOWARD THE CENTRAL PLAINS AS A LOW PRESSURE SYSTEM IS
FORECAST TO DEVELOP OVER THE NORTHERN HIGH PLAINS.
MEANWHILE, IN BETWEEN THE TROUGH IN THE NORTHEAST AND THE RIDGE IN
THE WEST, A HEAVY RAIN EVENT IS FORECAST TO EMERGE LATER TODAY
ACROSS SOUTHERN TEXAS WITH THE APPROACH OF A SUBTROPICAL JET
STREAM ACROSS MEXICO AHEAD OF AN UPPER-LEVEL TROUGH. THE VIGOROUS
LIFTING MECHANISM OVER RETURNING GULF MOISTURE ASSOCIATED WITH
THIS SYSTEM COULD DELIVER RAINFALL AMOUNTS IN EXCESS OF 5 INCHES
ACROSS MUCH OF SOUTHERN TEXAS WITH LOCAL AMOUNTS EXCEEDING 10
INCHES POSSIBLE. A MODERATE RISK OF FLASH FLOODING IS EXPECTED TO
SHIFT FROM WEST TO EAST SLOWLY ACROSS SOUTHERN TEXAS THROUGH THE
NEXT COUPLE OF DAYS.
A RATHER LARGE AND INTENSE CYCLONE IS COMING INTO PICTURE OVER THE
EASTERN PACIFIC. RAIN WELL AHEAD OF THIS SYSTEM IS FORECAST TO
REACH THE WEST COAST BY THIS EVENING ALONG COASTAL PACIFIC
NORTHWEST AND NORTHERN CALIFORNIA. BY THURSDAY, WINDS ARE
EXPECTED TO INCREASE AS THE RAIN BECOMES HEAVIER IN THESE AREAS.
THURSDAY EVENING SHOULD SEE THE EASTERN CORE OF THE BIG CYCLONE
EDGING INTO THE PACIFIC NORTHWEST WHERE A FEW INCHES OF HEAVY RAIN
CAN BE EXPECTED ESPECIALLY CLOSER TO THE COAST IN NORTHWESTERN
CALIFORNIA INTO SOUTHWESTERN OREGON.
ELSEWHERE, THUNDERSTORMS COULD LINGER THIS MORNING ACROSS THE
SOUTH-CENTRAL PLAINS AHEAD OF A LOW PRESSURE WAVE. SCATTERED
SHOWERS AND STORMS WILL THEN GATHER FARTHER NORTH ACROSS MISSOURI
AND VICINITY ON THURSDAY BEFORE SPREADING NORTHEAST AND EXPANDING
INTO THE MIDWEST BY FRIDAY MORNING AHEAD OF A LIFTING WARM FRONT.
COLDER AND WINDIER CONDITIONS WITH AN INCREASING CHANCE OF MIXED
RAIN AND WINTRY PRECIPITATION WILL EMERGE ACROSS THE NORTHERN
PLAINS AS AN INTENSIFYING AND ELONGATED LOW PRESSURE SYSTEM PASSES
JUST TO THE SOUTH THURSDAY NIGHT INTO FRIDAY MORNING.
KONG
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